[Contrast]: set image color contrast [Brightness]: set image brightness [Hue]: set image hue [Saturation]: set image Saturation [Auto Gain]: users can set it as auto or manual. Only 4CH Card and 16CH card have this function(except DR5016F because of only having manual gain function). [Default]: load defaults, i.e. set the first four items value as 5000 and the last item value as 0.